Dryer Section TRIZ Cases

Through-air drying fabrics with discrete protuberances create textured tissue webs that maintain high softness and bulk.

Actuator arrangement presses elements against turn rolls to form a nip, removing broken pulp web and reducing cleaning complexity.

Mechanical vibration loosens water and pulp fibers from the fabric, allowing an air device to remove them efficiently without high energy consumption.

Segmented air pressure zones draw web side edges toward the stabilizer surface, preventing curling caused by tension and gravity at high speeds.

Variable pulley diameters adjust rotational speed to maintain film tension without replacing hardware.

Segmented heater units allow quick roller replacement to minimize shutdown time during thermal degradation.

Segmented insulation in welded Yankee cylinder end heads reduces heat loss while maintaining mechanical strength under dynamic stress.

Multi stage washing column recovers waste heat from drying air via temperature-segmented liquid stages, reducing energy consumption.

Individual spray tubes supply each sealing strip, eliminating uneven wear and vacuum fluctuations from shared lubrication.

Heat pump recovers waste energy from drying exhaust gas to preheat smoothing cylinder medium, lowering total paper machine heat demand.

Centrifugal dewatering in a crescent former raises pulp dryness to preserve tissue bulk and cut energy costs.

Offset shute float weave pattern stabilizes protuberances on woven papermaking fabric to produce uniform density tissue with decorative elements.

A nozzle box combines direct impingement and inclined jet nozzles to eject hot gas jets perpendicular and at angles to the paper sheet.

Segmented suction device surface channels draw air through permeable fabric to dewater wet fibrous webs, preventing fines accumulation that clogs machinery.

Opposing Coanda nozzles with internal baffles channel air flow to counteract curvature and maintain a flat web profile for accurate caliper measurements.

Movable edge control strips cover gas blowing and exhaust means in impingement dryers to prevent web detachment and reduce edge defects during drying.

Direct hood airflow heats the web without fabric filtration, reducing water viscosity and energy consumption during extended nip processing.

Heated steel belts expand speed differences to 25% while maintaining web integrity.

Articulated partition panels reshape steam footprints to resolve debris accumulation and narrow zone precision limits.

Laser inspection detects web residues to prevent stoppages and enable successful threading.

Asymmetric nozzle tubes stabilize air carpets, eliminating turbulence and reducing air consumption during high-speed web transfer.

An adjustable carrying body accommodates varying groove depths, eliminating the need for multiple specialized pipe positioner sets.

Rocker-based mechanical couplings balance traversing hood weight, reducing actuator force requirements for efficient material web drying.

Graphical representations of treatment effect performance visualize Yankee cylinder heated surface conditions using existing tissue machine measurement devices.

A nanofibrillar cellulose surface layer deposits onto tissue webs to enhance tensile strength via high surface area.

Cyclone separators remove paper fibers from tissue production exhaust air, preventing filter clogging and maintaining heat recovery efficiency.

Segmented removal and stabilization boxes with independent seals prevent negative pressure cross-influence, reducing support belt wear at high speeds.

Steam explosion devolatilization removes water from wet natural fiber and plastic mixtures, enabling silane covalent bonding for stronger composites.

A paper making machine uses a capillary roller and pressure element to remove water from fibrous material.

A segmented removal zone applies selective vacuum pressure to detach material webs from support surfaces.

Continuous internal grooves eliminate transition zones, reducing energy waste and cylinder weight.

Vertical axis offset between dryer cylinders and guide rolls creates pulper workspace, stabilizing web travel at high speeds.

Modular insulated hood elements with watertight tongue-and-groove joints eliminate time-consuming frame assembly and prevent humid air penetration.

A mechanical compressor raises low-pressure steam to high pressure for efficient paper and board drying.

Optimized nozzle slot sizing and sealing distance ratios reduce air leakage while maintaining underpressure to prevent web detachment.

Dry gas blows on fiber webs create partial steam pressure differences that drive internal moisture diffusion and latent heat evaporation.

Segmented warp yarns combine polyphenylene sulfide and polyester to balance hydrolytic stability with elasticity, reducing costs while maintaining durability.

Segmented plenum chambers establish negative and positive pressure zones to overcome reduced airflow in offset drying cylinder pockets.

Flattened knuckles on through-air-drying fabrics increase contact area to resolve low creping efficiency and boost tissue bulk.

Segmented zones with porous felt and negative pressure remove moisture efficiently, lowering operational costs compared to Through Air Drying.

Foamed lignocellulose seedbeds resolve water retention and mechanical strength trade-offs in vertical cultivation.

Variable depth circumferential grooves in a Yankee dryer cylinder shell alter structural stiffness to manage thermoelastic loads.

Blocking inserts prevent axial airflow between corrugated layers, reducing thermal stresses at end members and extending production roll life.

Dual-temperature supply conduits with independent damper means enable localized flow ratio adjustments across segmented distributor zones.

Segmented syphon shoes with opposing circumferential openings remove condensate from rotating cylinders regardless of rotation direction.

Flow meter monitors water supply to logic control unit, adjusting underpressure and preventing dry dust accumulation.

Inflatable valve elements replace mechanical sealing strips to eliminate adhesion issues and enable remote operation of suction ducts during felt cleaning.

A model-based controller calculates mass and energy balances to optimize specific energy consumption in paper machine drying sections.

Cast iron heads with tuned composition match steel shell expansion, reducing thermal stress and extending lifespan.

Recycling airborne web-dryer exhaust air into subsequent dryer units reduces energy consumption by eliminating separate heating devices.